Failing to Choose the Best Price: Theory, Evidence, and Policy

Abstract

Both the “law of one price” and Bertrand’s (J Savants 67:499–508, 1883) prediction of marginal cost pricing for homogeneous goods rest on the assumption that consumers will choose the best price. In practice, consumers often fail to choose the best price because they search too little, become confused comparing prices, and/or show excessive inertia through too little switching away from past choices or default options. This is particularly true when price is a vector rather than a scalar, and consumers have limited experience in the relevant market. All three mistakes may contribute to positive markups that fail to diminish as the number of competing sellers increases. Firms may have an incentive to exacerbate these problems by obfuscating prices, thereby using complexity to make price comparisons difficult and soften competition. Possible regulatory interventions include: simplifying the choice environment, for instance by restricting price to be a scalar; advising consumers of their expected costs under each option; or choosing on behalf of consumers.

Ericson, K. M. M. (2014b). On the interaction of memory and procrastination: Implications for reminders. NBER working paper no. 20381. Accessed at http://www.nber.org/papers/w20381 on December 11, 2014.

Ericson, K. M. M. (2014c). When consumers do not make an active decision: Dynamic default rules and their equilibrium effects. NBER working paper no. 20127. Accessed at http://www.nber.org/papers/w20127 on December 11, 2014.

Morwitz, V., Greenleaf, E., Shalev, E., & Johnson, E. J. (2013). The price does not include additional taxes, fees, and surcharges: A review of research on partitioned pricing. Accessed from SSRN at http://ssrn.com/abstract=1350004 on May 1, 2015.

Sudhir, K., & Yang, N. (2014). Exploiting the choice-consumption mismatch: A new approach to disentangle state dependence and heterogeneity. Accessed from SSRN at http://ssrn.com/abstract=2409115 on April 13, 2015.